%0 Journal Article %T Multivariable Modeling with Cubic Regression Splines: A Principled Approach %A Royston, Patrick %A Sauerbrei, Willi %J "Stata Journal, The" %V 7 %N 1 %P 45-70 %@ 1536-867X %D 2007-02-01 %I SAGE Publications %~ DeepDyve